Transmission-gear.



MTENTBD SEPT. a, 190?.

J. MORSE. TRANSMISSION GEAR. APPLIUATION FILED @c1120. 1906.

WHNESSES: f

am am wh @mmh WORN? Y BYY PATENTED SEPT. S, 19D? 5. MRSE.

2 SHEETS-SHEET 2.

No, @e5/m0@ TRNSMSSIGN GEAR,

PPLATION ILED 00T. 20. 1906.

R wi wwwa mmw MM, w mw @Sw ww/w 5%? @s N r1 BY ff/f nected from lthe gearing and i'ronrench other,

Fig. /l is :in-enliirgedlsectioiml detziilview of the slntit und the selective clutch rods, showing one UNITED ySTATES PATENT OFFICE.

.\ Illllll .Mt/Uli MORSE, Cl." TOlltINGTON, CONNECTICUT, AS'SIGNOltOF ONF-HALF TO .itllELBlCltl I.V lll'NE, OF TORHINGTON, CONNECTICUT.

TRANSMISSION-GEAR.

Specification of Letters Potent.

Patented Sept. 3, 1907.

'llo all iu/ioni "it nuo] concern.' Y

lie it known tlntt l, An'rnon J'Aoon MORSE, zi citizen of the United Stiitcs, residing nt Torringtona county ol' Litchfield, Stute of Connecticut, have invented certziin new :nid usci ul Improvements in Transmission- Geiirs, of which the following is` n spcciliczition.

This invention rclattcs to transmission gearing, such iis employed. to connect driving and driven shafts t0 rotzite the l-.ittor :it different speeds and in thc saine or in u. reverse direction, Where the -power or the l'ornicr is derived ironi it in'otor the speed of which is substinitizilly constant. l

The prisent invention particularly contemplates iurthcr improvements in the ineens or applying the gencinl principles vinvolved 'in` the transmission gearing shown und described by me iii niyearlier application lor patent, liled .lune 13, 1906, Serial No.32l,47l,- these iiirtlier improvements particularly consisting in n. more positive :ii1(l''depeiiclable clutch `for direct drive; better ineens for insuring automatic disconnection of ull gein-ing from the shafts when the `lzitt'cr are directly coupled; simpler, more easily operated and more otiicient selective 'clutch mechanism for the changeable-spoed gear trains, sind a construction which permits of the employment o roller eaiings to reduce friction. r l

My invention will be more readily understood by reference tothe accompanying drawings, orining :i part oi this spceilcition, in which l have illustrated a. convenient embodiment thereof, and in wliich Figure 1 is a. longitudinl section oi a device enibodying iiiy invention, showing the shafts disconthere lacing, therefore, no ytransmission of power. Fig. 2 is :i pintly scctionul plain view, sliowiiigthe shafts connected through the low speed geartraii'i. yFig. 3 is e. transverse section, substantially 'on the line s3, s3, of Fig.'4 2. driven oi the terininiil genis4 :ind its piiir of spring dogs, liereinnlter dcscribed. Fig; 5 is lrin enlarged longitudinal section, simihnto Fig. 1l, showing the shaits connected through the interinediiite speed gwn-s. Fig. 6 n cross-sectionnl dctatil viewol the direct driveI clutch. Fig. 7 is :ni cnlu-i'gcd scctioniil view ol' portions oi' 'the caringl show-- ini,r thc contiguous ends oi' the sluil'ts, the direct dri ving clutches zuid thc` nniin driving geur clutch. Fig. S is :t tinosvcrsc section, substitut/hilly on the lino s, s, oi Fig. 7. 4 l' ltcl'ei'ring now to the drawings in dciuil: l liiive shown :i driving shalt il, rotiucd :it 1|. snbstzuitiiilly uni'- l'orni mtc of speed from :my convenient source o1' power (not shown) iind from which it is drsircd to Iriinsmit motion to the` drivcii sli-.ill l0, iiliiicd therewith, in the sinne or in ii i-cvcrsc direction und in. the suine or n .reduced inte oi speed. The driving shnft 9 is bored out to receive the rod 1]. `,ind thc comprcssioi'i spring 12 acting uguinst the interior end oi snid rod. The rod 1l terminates in :i head or enlarged portion 155, the

y function oi' which will be licrciiniiter explained.

The driven shalt l0 is provided en opposite sides with longitudinal and preferably rectangular' grooves or key-wuys 14, 15, within which are slidubly mounted the correspondingly shaped bars or sliding keys 16, 1'7, respectively. As stated, each of these bars or keys substantially conforms in cross-sectional configuration to that of the groove within Which it slides, and near its inner' end is provided l:with a depression, notch' or recess 18. Longitudinally, this notch or recess is pro'- vided with gently tapering er inclined sides, as `best shown in Fig. l, while transversely, it tapers or curves gradually from the surface oi the shaft l0, in one direction, to form with the side of the groove in the shaft n shoulder or stop 19, as shown in Figs. 4 and 8.` In order that the bars or keys 1G, 17, muy he operated during rotation of the shaft 10, l have shown them provided at their ends with projecting lugs 20, 2l,betwceii which is a loose collar 22, which may be operattd by o `yoke and lever in the common and well-known manner of clutch operating devices.

The contiguous Aends oi the shafts 9 :1nd l0 are preferably enlarged, as shown, to iol-rn the heads 23 und 24, respectively-` The inner ends oi the keys 1G, 17, pass through `suitable bores in the head 24 of the shaft 10, and impinge, when moved to the left (reerring to the device as illustrated in drawings), against the head 13 of -the rod l1; 'The head 23 of the driving sli-lil' t 9 is provided, tirst, with at deeper recess or pocket 25, forming it chamber to receive the houd 13, `und second, with recesses or pockets 26, 27, corresponding in sli-npc. to the ends oi the keys 16,17. l inward movement ol' the lieyslt, 17, will, through the houd 13, oper-utc to force buck the rod ll. against the cw tion of itssorine' 12 und scat the ends ois-.iid rods inthe pockets 2(1)', 27, the lic-iid 13 receding.,r into the deeper pocket 2. The two shafts will thcn lie directly coupled for direct transmission ol power from one lo the other. I i

Indirect trzinsniission, lor varying the spccd or reversing,r the d ircctiou oi roliition of the driven' shalt 1U, is 'effected through the employment ol ccrluiii lriliiis ol' gears, which will be herein-.111er described, but :ill di which gear ti'uins have :l coniiuon driving geur und have no motion cxccpt as imparted by movement ol' said drivingl geur. lt is, therefore. desirable, :is will' subsequently more clearly iippczii, llnit the dl'ivinf.,r

gear, which is of course mounted on the driving simil.

be disconnected when the drivingl und llic driven shafts :ire coupled toil direct ti'nnsinission. To this cnil l have shown :i sleeve 2S, loose upon thc drivingl sli-.ill t) 1t will be apparent that lnll 'ico and carrying the main drivinggear 29. This sleeve has projections 30, which interlock with similar and opposite projections 31 on the loose sleeve or collar 32 to form an interlocking clutch, or any other preferred form ofclutch may be employed. The sleeve or collar 32 is slidable. hack and forth on the shaft 9 by means of a. pin 33, extending through and fixed in the rod 11,' and which has a limited play in the slot'iet in said shaft.-

ll t will he apparent that when the rod llfis moved against the action of its spring, as the direct clutch is rendered effective, the pin 33 will withdraw the sleeve or collar 32 from the sleeve 28, carrying the driving gear 29, and disconnecting saidsleeve and therefore the gear'29 from the shaftt). Wheri the keys 16, 17, are withdrawn to disconnect the shafts, the springrl! returns the rod 1l and through the pin 33 connects the driving gear 29 through the clutch mechanism just described.

I prefer that the indirect transmission gearing should be inclosed within a suitable gear box or casing 35, in the sides of which is journaled the shaft 36, car'- rying a ti-Xed gear 37, meshing with the main driving gear 29. This shaft 86 carries the fixed reducing gears 38, 39, meshing, respectively, with the gears 40 and 41, loose upon thel driven shaft 10, and between gear 39 and the gear 42, similarly loose upon the shaft 10, is the reversing pinion 44. Each of these loose gears 40, 41, 42, is provided with at least one pocket or recess Lt5ir preferably two thereof oppositely located, as shown iu the drawings-within each of which, as 'best shown in Fig. S, is pivoted a dog 46, the free end of which is outwardly pressed by ineens of a compression spring 47, but which' normally lies within its-recess or pocket., retained in this position by the contiguous hearing face of the shaft 10. It will beapparent that as the keys 1G; 17, are'moved'back and forth, the notch or recess 18, being properly located, may be made to register with any one of the gears 40, 41, 42, without seating the ends of said rods in the pockets in the head 23 of the shaft 9 for directl transmission. When so registering, as-the shaft 10 withi the keys 16, 17, is revolved, the notcfbor. recess 18 in one or the other of said rods'rivill pass under the spring-pressed vdog 46 (or one of said dogs, if more than one are employed for each gear) of the gear which registers with said notch or recess whereupon said dog will be forced into said notch and engage the shoulder lt), immediately' connecting the shaftand gear for rotation of the former by the latter. If the keys 1G, 17, are moved in either direction, the dog 46 will ride up the tapering or inclined side of the notch or rcccss 18 and hc forced back into its pocket., and in this manner, by sliding the keys lt, 17, unyoneof the gears 40, 41 42, may bc coupled to the shaft 10, the others continuing to run loosely thereon; or the rods may be moved to the position indicated in Fig. l, in which no movement. is imparted to the drivcnslnxft, or through the maximum distance to directly couple together the shafts 9 and l0, us explained,

I prefer to employ twoscts ol' interposed reducing gears in order to equalize the strain aud give greater strength, and in Fig. t have illustrated two couutcn part scts, whereof the above description of one will suffice for hoth, but so far as thc actual transmission of powcrfis concerned, it will be obvious that but one set is required. Similarly, it will be apparent that, so far us the reasonably effective operation of the device is concerned, one sliding key might be employed, und onespring dog, instead of two, iu each geur. i

From the above description it. will be apparent. that through the employment of a single controlling lever the keys 16, 17, may be given their maximum movcA ment and the shafts 9 and l0 coupled together for direct transmission of power from one to the other. In this case, as has been shown, the main driving gear 29 h-.rs been released, permitting the rotation ot' the shaft. 9 independently thereof. During direct transmission of power, therefore, no motion will be imparted to the main driving gear 29, and all gearing will remain at. rest. This is an obviously desirable feature, preventing waste of power in doinguseless work.

Furthermore, uit will he apparent that the same con` trolling lever may be employed to move the keys lo, 17,v through certain steps or distances to effect the engageinent with the driven shaft 10 of any one of the sgears 40, 41, 42, the other two gears continuing to run loose upon the shaft 10. The keys lo, 17, in this po sition, heing free of the pockets in the head 23 of the shaft 9, and the compression spring 12 having served to return the rod 11 to its normal position and therewith coupie the driving gear. 29 to the shaft 9, it will be apparent that the driving and driven shafts are conncct` ed only through the train of gears, of which the main driving gear 29 is the first and which terminates in the particular gear on the shaft 10 which has, through action of the keys 16, 17, been coupled thereto.

When motion is transmitted through one of the -gears 40, 41, 42, as just described, any load upon the driven shaft in excess of the total resistance offered by the weight and friction of the engaging parts of the getting will oppose rotationof this shaft, and unless checked., the tendency would be for the gear casing and reducing gears mounted thereon, to revolve in a planetary motion about the driven gears, and the driven shaft to come to rest.. Y

1n order to counter-balance the load upon the driven shaft, a suitable friction device is employed comprising two members 48, ,49, one of which is connected to the gearcasing and. ,the other mounted for independent movement. These members are inclosed in a sectional nim-rotatable casing 50, and are moved in and out of effective engagement by means of a cam 5 l,which coperates with studs 52 of the loose member of the friction device, such studs projectingthrough openings iu the side of the casing, as shown in Figs. 1, 2 and 5, One or ooth members of the friction device may be faced with leatireror other materialfas indicated at. 53, or otherwise formed, if desired.

The cam may be given motion through any suitable lever connection, such as that indicated at 54, to throw the friction on or off and hold the gear casing from rovtationor permit rotation thereof at any speed desired.

A controlling device is thus provided which is effective at all times to vary the speed of the driven shaft witl1- out requiring a ie.if.ljiistnieiit of the clutch.

Assuming, for` example, that the shaft 10 is being 'driven iii the same direction as the driving shaft, at a two to one rotation in speed, as indicated in Fig. 5. 1i,

now, it is desired yto further reduce the speed of the v driven shaft, the cam is rotated through the lever connection above referred to, permitting more or less slip between the members of the friction device, and thereto the driven shaft, the latter woilld `cease to rotate.

Obviously, therefore, by shifting the (ram, first in one direction and then in the other, any desired change in the speed of the driven shaft may be obtained, and upon again throwing on the friction, the gearing will i become effective and the shaft Will resume its rotation at a two-to-one rotation in speed, lor which it was assumed to be set.

While I havedesignated the shalt 9 as the driving shalt, from which power is to be transmitted to the shaft 10, it will be apparent that the functions oi theshafts, as shown, may be reversed. ,'[t will be observed, further, that the various adjustments above deseribed are made Without disengaging the gears, and that the speed and direction of rotation of the driven shaft is at all times under complete control.

Many modifications of minor details of my improved transmission gearing will doubtless readily suggest themselves to those skilled in the art to which it apperA tains, and I therefore do not limit my invention to the specific construction' therein shown and described.

Having thus described my invention7 I claim:

1. ln combination, a driving member, a driven member, normallyaiperalle gearing including planetary gears connel-ring the members and arranged in a branebed train, means for retail-ding in varying deg-ree the orbital motion of tbe'planetary nears common to the several branches, and a clutch mechanism selectively operable to vennoot said driven member with any one of said branches and further operabie to directly Connect said members and diswonncet thegearlnfr therefrom. i

2. In (aanbiiiation, a driving' member, a drivenl member, `:rearing including; planetary gears interposed beiweeulthe iembers and arranged in a main ,train having branches and a' loose initial driving4 gear, said gearing' helm: permanently mounted in inizermeshingy relation. means for retal-ding in varying degree the orbital motion o1 the planetary `nearsl common io `the'several brlilnebesl to vary the speed of the driven member when rotated in either directien. and interdependent elui'rhr's. normally ronnerting the driving mcmber with the drivin.: gear and the driven member selectively with one of ysaid branches, and operable to`dire -tly eonneetsaid members and entirely di.-; connect said gearing therefrom, and common routrollnf; means for the rlutrbes.

Il. In Combination, a driving'meniber, :r driven member, a hangeablespeed gear train includingr planetary gears interposed between the members and lerminaiiugr in selective gears loose Ilpon said driven member, said selective gears having pockets provided with spring-pressed dogs, a single operating mechanism operabh` to engage any one ot' said dogs lo selerlively vennoot said driven member with any one of said terminal gears. and means lor eont'rolling the orbital motion of' said planetary gears.

4. ln 'olnbination, a driving' member. a, driven member, a chang-aallle-speed gear train including.; plauelory gears interposed between the members having' the initial gear loose upon said driving member and i'ermilmtin;r in'selectivo gears loose upon said driven member, said selective `aenrs having: pockets provided with .sp1-i1 pressed does. (-Iurc-h merhanism normally eonneeline saul drivina memi ber willi said initial gear. a single merbanlsm operable lo disconnect said elutrh or to ena-age any one ol' said dogs, and means i'or controllingthe orbitalV motion ol .said plauelary gearft in testimony whereof, l allix my signature, in Ihel prosenre of two witnesses.

. Alt'llllll': .lAlUll NURSE.

Witnesses:

linionicaiori A. llnoirx'r, FnANK OCoNNon. 

